Art Resources
Public Domain and Creative Commons
Library of Congress Digital Collections
New York Public Library Digital Collections
Smithsonian Open Access
Public Domain Image Archive (from The Public Domain Review)
PICRYL Public Domain Media Search Engine
Getty Collection Open Content (CC0)
Heritage Library
Openverse (photos, images, audio)
Cosmos Public Work Search
Creative Commons Search
Exotic Animals Photo Reference
Anti-AI Image Tools
Glaze
Nightshade